Implement anonymous account mode (Issue #2)

- Modified index route to allow browsing without login
- Set default user_settings for anonymous users with safe defaults
- Added anonymous flag to dashboard template
- Updated navigation to show Login/Sign Up buttons for anonymous users
- Changed feed header to "Public Feed" for anonymous browsing
- Hide Customize button for anonymous users

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

app.py

@@ -276,8 +276,18 @@ def index():
 
         return render_template('dashboard.html', user_settings=user_settings)
     else:
-        # Redirect non-authenticated users to login
-        return redirect(url_for('login'))
+        # Anonymous mode - allow browsing with default settings
+        user_settings = {
+            'filter_set': 'no_filter',
+            'communities': [],
+            'experience': {
+                'infinite_scroll': False,
+                'auto_refresh': False,
+                'push_notifications': False,
+                'dark_patterns_opt_in': False
+            }
+        }
+        return render_template('dashboard.html', user_settings=user_settings, anonymous=True)
 
 
 @app.route('/feed/<filterset>')

templates/dashboard.html

@@ -21,6 +21,12 @@
         </div>
         
         <div class="nav-right">
+            {% if anonymous %}
+                <div class="anonymous-actions">
+                    <a href="{{ url_for('login') }}" class="login-btn">🔑 Login</a>
+                    <a href="{{ url_for('register') }}" class="register-btn">📝 Sign Up</a>
+                </div>
+            {% else %}
                 <div class="user-menu">
                     <div class="user-info">
                         <div class="user-avatar">
@@ -40,6 +46,7 @@
                         <a href="{{ url_for('logout') }}" class="dropdown-item">🚪 Logout</a>
                     </div>
                 </div>
+            {% endif %}
         </div>
     </div>
 </nav>
@@ -90,10 +97,12 @@
     <!-- Content Feed -->
     <section class="content-section">
         <div class="content-header">
-            <h1>Your Feed</h1>
+            <h1>{% if anonymous %}Public Feed{% else %}Your Feed{% endif %}</h1>
             <div class="content-actions">
                 <button class="refresh-btn" onclick="refreshFeed()">🔄 Refresh</button>
+                {% if not anonymous %}
                     <a href="{{ url_for('settings_filters') }}" class="filter-btn">🔧 Customize</a>
+                {% endif %}
             </div>
         </div>